Use high-DPI display:
Some devices have a much higher resolution display, with more dots per inch (DPI) than other devices. Setting this property to Yes will use the full resolution of the device for maximum display quality, although this can sometimes reduce performance. Setting to No will treat the display like a traditional low-resolution display, which reduces detail but can improve performance.
That is A LOT OF WORDS but what does it ACTUALLY DO ?
Say I have a 1920 by 1080 Screen and I create a project that have a window size of exactly 1920 by 1080.
What will setting Use High-DPI display to "No" do ?
Will it automatically lower res the whole thing and then blow it up again ?
If it does that what exactly is this "mythical" low resolution that it scales down to ?
Say I have a 1920 by 1080 screen and I create a game with a window size of 1280 by 720.
What will setting Use High-DPI display to "Yes" do ?
Will it scale up using a different algorithm compared to setting it to "No" ?
Even worst, what if you have a 1280 by 720 mobile screen and your project window size is 1920 by 1080 and what would setting Use High-DPI to either Yes or No do ?
There is no explanation as to what this simple dropdown list actually do in the background.
What does it actually do ?